APA aipamena

Wallace,Robert A. (1990). Biology: World of Life (5.).

Chicago Style aipamena

Wallace,Robert A. Biology: World of Life. 5. LONDON, 1990.

MLA aipamena

Wallace,Robert A. Biology: World of Life. 5. 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.